Digital Commons Network^™

Rockyou2024: What’S Your Password?, Yixuan Zhang

Honors Theses

Passwords remain a critical part of almost every account security system. As a result, password guessing attacks remain one of the most widespread yet profitable attacks possible. Setting a password resistant to attacks is thus an important task for account holders. In this paper, we use the RockYou2024 database, a collection of approximately 10 billion real-world passwords collected from data breaches, to analyze the characteristics of passwords found in real life. We start with basic statistical property analysis, such as length, distribution of digits and symbols, and proceed onto more complicated properties such as frequencies of combinations of characters, entropy …

Mnes Vs. Local Firms’ Resilience To Global Shocks: Evidence From The 2008 Financial Crisis And Covid-19, Yijie Wang

Honors Theses

This thesis examines whether multinational enterprises (MNEs) are more resilient than domestic firms during major global shocks, using the 2008 Financial Crisis and COVID-19 as case studies. Although MNEs may benefit from diversification, internal capital markets, and foreign linkages, they may also face greater exposure to global demand shrinkage and supplychain disruption.

Using Compustat North America firm-level panel data from WRDS, this study analyzes publicly listed U.S. and Canadian firms across 2007–2013 and 2018–2024. Firm resilience is measured through net sales, net income, and gross profit using a two-way fixed effects panel model. Multinational status is identified through two different …

Field-Scale Evaluation Of Satellite- Derived Vegetation Indices And Image Timing For In-Season Nitrogen Management In Corn, Ana Morales-Ona, Katsutoshi Mizuta, James J. Camberato, Robert Nielsen, Yuxin Miao, Davide Cammarano, German Mandrini, Daniel Quinn

Plant and Soil Sciences Faculty Publications

Introduction: Traditional methods to determine the agronomic optimum nitrogen rate (AONR) for corn (Zea mays L.) rely on grain yield data, limiting in-season decision-making for nitrogen (N) management. Vegetation indices (VIs) derived from satellite imagery can serve as proxies for grain yield and help estimate in-season AONR, enabling timely sidedress applications. This study aimed to (1) quantify how VI–yield relationships vary during the vegetative period across fields with different tillage systems and crop residue; (2) determine whether VI–N response curves can be used to estimate AONR (AONRvi); and (3) assess the accuracy of AONRvi relative to yield-based AONR (AONRy). …

Ovipositional Behavior Of The Twig Girdler (Cerambycidae: Oncideres Cingulata) On Stems Of Mockernut Hickory (Carya Tomentosa) In Arkansas, R. Tumlison, L. Serviss

Journal of the Arkansas Academy of Science

The Twig Girdler (Cerambycidae: Oncideres cingulata) is a long-horned beetle that girdles stems of certain species of trees to prepare a habitat for its offspring. The stems eventually die, break, and fall from the tree, but the beetle usually had already laid its eggs within the stems. Eggs are laid singly, almost always at growth rings or leaf bases. Because the space for the young to develop is finite, laying too many eggs could cause reproductive failure and too few eggs would be suboptimal. We hypothesized that the female laying eggs should be able to evaluate the stem and …

Feasibility, Acceptability, And Preliminary Efficacy Of A Pilot Study To Integrate Buprenorphine Into A Harm-Reduction Drop-In-Center In Kampala, Uganda, Julia Dickson-Gomez, Sergey Tarima, Wamala Twaibu, Dan Katende, Latifah Kyeswa, Laura Glasman, Arthur Kiconco, Sarah Krechel, Bryan Johnston, Moses Ogwal, Brian Byamah Mutamba, Peter Mudiope, Stella Alamo, Rhoda Wanyenze, Geofrey Musinguzi

Biostatistics Faculty Publications

Illicit drug use has been increasing rapidly in Sub-Saharan Africa in the past decade. However, until recently HIV prevention has largely ignored people who inject drugs and medications to treat opioid use disorder (MOUD) were largely absent. This paper reports results of a pilot intervention that integrated buprenorphine into a harm-reduction drop-in-center for people with opioid use disorder (OUD) in Kampala, Uganda. We collected implementation outcomes and changes in self-reported drug use after buprenorphine initiation. We conducted qualitative interviews with a subset of 14 participants who had initiated buprenorphine. Sixty-two participants were screened for OUD, of whom 57 were eligible …

Artificial Intelligence In Biomedical Team Science: Perceptions, Practices, And Training Needs, Emily Slade, Kelsey N. Karnik, Caitline Phan, Megan E. Hall, Yana Feygin, Kristen J. Mcquerry

Biostatistics Faculty Publications

Introduction: Artificial intelligence (AI) is increasingly used in biomedical research, yet limited empirical work has described how researchers use AI tools on collaborative research teams and how they view their role within team-based research. This study examines researchers’ experience with and attitudes toward AI use in collaborative research environments.

Methods: A cross-sectional survey was administered to 178 investigators engaged in collaborative research at the University of Kentucky. Questions assessed AI use across research and communication tasks, team-related decision-making practices, perceived benefits and concerns, and preferences for training and frameworks.

Results: Thirty-nine participants responded (22%). AI use was heterogeneous: 26% had …

Trade-Offs In Sustainable Building Design: A Visual Study Of Daylighting, Quality Viewpoints And Energy Efficiency, Paula Cabanas

Honors Program Theses

This thesis explores the trade-offs between daylighting, quality viewpoints, and energy efficiency in sustainable architectural design. The initial goal of the project was to determine if there was a single building design that would optimize the trade-offs between these three design elements. Three buildings on the Rollins College campus were selected as case study sites for detailed analysis (Bush Science Center, Kathleen W. Rollins Hall, and the Rice Family Pavilion). Rollins College was chosen as the primary location for this study because of its accessible public buildings and consistent Mediterranean revival architectural style. Analysis of each building’s design and composition …

Biochemical Investigations Of F420-Dependent Glucose-6-Phosphate Dehydrogenase From Cryptosporangium Arvum, Sarah T. Al-Noubani

2026 Spring Honors Capstones Projects

F₄₂₀-dependent glucose-6-phosphate dehydrogenase (FGD) catalyzes the conversion of glucose-6-phosphate to 6-phosphogluconolactone using the deazaflavin, Cofactor F₄₂₀. FGD from Mycobacterium tuberculosis has been investigated due to its health relevance to prodrug activation. More recently, FGD from Cryptosporangium arvum (Cryar- FGD) has been investigated due to its broader substrate specificity toward multiple sugar phosphates. Kinetic and NMR studies have shown that Cryar-FGD has dual catalytic activity as a dehydrogenase and isomerase. Further investigations are being conducted on Cryar-FGD to characterize key residues involved in catalysis.

To investigate the catalytically active residues of Cryar-FGD, …

Bursty Bulk Flows: The What, The Why, And Their Impacts On The Earth, Fariza Tanvir

2026 Spring Honors Capstones Projects

Due to solar wind-magnetosphere interactions, the Earth's magnetic field lines stretch into a long, comet-shaped magnetotail, which extends thousands of miles away from the Earth. Bursty Bulk Flows (BBFs) are transient, high-speed ion bulk flows in the magnetotail that play an essential role in energy and mass transport. Characterized by their short-lived duration, they are related to magnetic reconnection events. This investigation focuses on being able to identify BBFs using the Magnetospheric Multiscale (MMS) probes, a mission consisting of four probes arranged in a tetrahedron to study the Earth’s magnetosphere. We examine parameters such as energy spectra, spin bulk velocity, …

Color-Blind Resilience: How Uniform Climate Standards Reproduce Environmental Inequality In The Rockaways, Aaryan M. Nair

Publications and Research

This paper examines how ostensibly uniform climate resilience standards can reproduce environmental inequality in socially uneven landscapes, using the Rockaway Peninsula in New York City as a critical case study. While flood-resistant building codes, zoning regulations, and insurance frameworks are designed to provide equal protection across flood-prone areas, this analysis argues that their “color-blind” application obscures and intensifies underlying disparities in financial capacity, housing conditions, and tenure. Drawing on environmental justice (EJ) theory, the paper identifies two key mechanisms through which inequality is reproduced. First, “code without capacity” demonstrates how uniform technical standards—such as elevation requirements under NYC Building Code …

From Transducer To Force Field: A Validated Simulation-Inference Pipeline For Lipus Mechanobiology, Davis Bone

Student Research Design & Innovation Symposium

Quantifying the mechanical forces that drive cell motility under acoustic stimulation requires linking physically defined pressure fields to measurable cell behavior. We present a computational framework coupling k-Wave acoustic simulation to Underdamped Langevin Inference (ULI) to recover radiation force fields from synthetic cell trajectories. Two geometries – a 12-well plate and a microscope slide – were simulated at 1 MHz using 1, 2, 4, and 8 transducer elements with uniform, Gaussian-apodized, 5°/10°/15° beam-steered, and randomized-amplitude configurations (132 total simulations). For each acoustic field, 48 synthetic cells were propagated via the underdamped Langevin equation for 50 seconds and submitted to ULI …

Spatiotemporal Dynamics Of Mountain Front Recharge Flow Paths And Their Contribution To Alluvial Aquifer Water Supply, Mikaela Bollag-Miller

Graduate Student Theses, Dissertations, & Professional Papers

Mountain Front Recharge (MFR) is a critical recharge source for alluvial basin aquifers throughout the Intermountain West, yet the spatial and temporal dynamics of distinct recharge pathways remain poorly constrained. This study investigates the seasonal and spatial dynamics of MFR pathways and evaluates their impact on the Missoula Aquifer, a sole-source alluvial aquifer in western Montana, USA. MFR includes both surface-water inflows from mountain areas and Mountain Block Recharge (MBR), the groundwater contribution to the basin aquifer. A valley-scale water balance was employed to estimate first-order contributions and temporal fluctuations of MBR flow paths. A three-layer steady-state MODFLOW groundwater model …

Oil Palm (Elaeis Guineensis) Leaf Extract-Mediated Green Synthesis Of Tio2 Nanoparticles And Their Optical Characteristics, Nofrijon Sofyan, Andriayani, Yetria Rilda, Fiona Angellinnov, Mouna M'Rad, Muhammad, Aga Ridhova, Akhmad Herman Yuwono, Donanta Dhaneswara

Baghdad Science Journal

This work aims to explore the characteristics of TiO2 NPs green-synthesized via an environmentally friendly method using oil palm (Elaeis guineensis) leaf extract as a green medium and capping agent by utilizing titanium tetra isopropoxide (TTIP) as precursor. The oil palm leaves were extracted with different solvent concentration variations. The natural extract was characterized using liquid chromatography-mass spectroscopy (LC-MS) and infrared spectroscopy for active chemical contents and functional groups. The obtained TiO2 NPs were also characterized using infrared spectroscopy (FTIR) for the functional groups, ultraviolet spectroscopy (UV-DRS) for the optical characteristics, and X-ray diffraction (XRD) for the phase …

Application Of Organic Geochemistry To The Characterization Of Hydrochar And Biochar: Insights Into Composition And Optimization, Michael A. Kruge, Teresa A. Centeno, Alvaro Amado-Fierro, José Manuel González-Lafuente, Rubén Forján, José Luis Gallego

Department of Earth and Environmental Studies Faculty Scholarship and Creative Works

Hydrothermal carbonization has garnered significant attention in recent studies due to potential applications of the hydrochar produced, which overlap with those of torrefied biochar, including soil improvement, carbon sequestration, and energy production. However, unlike the relatively uniform properties of biochar, hydrochar characteristics can vary greatly depending on the feedstock used. Advanced characterization techniques are essential to better understand these materials and enhance their practical applications. Research on hydrochar requires a multi-faceted approach, including molecular-level studies, to optimize production processes and identify specific applications.

In this regard, analytical methods commonly used in organic geochemistry could play a crucial role in deepening …

Clinical Subtypes Of Co-Morbid Insomnia And Obstructive Sleep Apnea (Comisa): Results Of A Cluster Analysis, Yuan Shi, Xujun Feng, Fengyi Hao, Yuru Nie, Yihui Zhang, Zhaohua Chen, Siqi Guan, Larry D. Sanford, Michael V. Vitiello, Xiangdong Tang

Department of Pathology & Anatomy Faculty Publications

Background

Variations in the bidirectional relationship between obstructive sleep apnea (OSA) and insomnia in co-morbid insomnia and OSA (COMISA) may form distinct subtypes of COMISA, which have not been previously characterized. This study aims to identify and characterize subtypes of COMISA.

Methods

From a community-recruited COMISA cohort 256 individuals who met diagnosis for COMISA were used to identify subtypes using a two-step clustering methodology. Demographics and multidimension clinical characteristics were collected and compared among obtained subtypes. Logistic models were used to evaluate whether these subtypes were associated with cardiometabolic and mental disorders. A clinical cohort of 1816 COMISA patients was …

How Do Reading Specialists Shape Their Identities As Literacy Leaders? An Exploration Of Competence, Performance, And Recognition Within Communities Of Practice, Christina Glance Petrone

Graduate Theses, Dissertations, and Problem Reports (ETD)

This qualitative multiple-case study explored how reading specialists enact literacy leadership within elementary schools in West Virginia. Although reading specialists are increasingly expected to support schoolwide literacy improvement, leadership responsibilities are not always explicitly defined within their roles. Guided by a communities of practice framework and an identity model, this study examined how reading specialists develop and demonstrate literacy leadership through their daily interactions with teachers, administrators, and other school personnel. Data sources included participant questionnaires and semi-structured interviews with participants, their principals, and colleagues from their school. Participants in this study included three reading specialists (interventionists) working in K-5 …

Evaluation Of Potential Factors Limiting The Expansion Of Invasive Carp (Hypophthalmichthys Spp.) In The Ohio River Basin, Erin Shepta

Graduate Theses, Dissertations, and Problem Reports (ETD)

The introduction of aquatic invasive species is one of the greatest threats to freshwater biodiversity around the world. Two species of invasive carp, bighead carp (Hypophthalmichthys nobilis) and silver carp (H. molitrix) have spread throughout much of the Mississippi River Basin, resulting in serious ecological impacts to native communities. Their spread in the Ohio River, a major tributary of the Mississippi River, appears to have slowed, with limited evidence of upstream advancements. Here, we investigated abiotic and biotic factors that may be contributing to the reduced spread of invasive carp in the Ohio River Basin. Generally, …

Cell-To-Pack Modeling Of Lithium-Ion Batteries: From Bayesian Parameterization To Pack-Level Optimization, Derek Slack

Graduate Theses, Dissertations, and Problem Reports (ETD)

One of the major hurdles for electric or hybrid aviation is the comparative energy density between lithium-ion batteries and jet fuel. To help obtain maximal power-to-weight ratio in electric or hybrid powertrains the battery pack design should be optimized to be as light as possible while meeting thermal safety and power requirements. The proposed solution is an optimization routine beginning with a cell-level parameter estimation of lithium-ion battery cells, where data driven Bayesian Gaussian Processes replace empirically or analytically derived parameters in a first principles electrochemical model in PyBaMM, as functions of the transient state of the cell. The resulting …

Dielectrophoretic Biomarkers For Cancer Detection And Cell Analysis: Integrating Microfluidics And Ai, Raphael Olumide Oladokun

Graduate Theses, Dissertations, and Problem Reports (ETD)

Pancreatic ductal adenocarcinoma (PDAC) carries a five-year survival rate of 13%, driven largely by late-stage diagnosis and the absence of sensitive noninvasive screening tools. Current diagnostic methods lack the sensitivity to detect disease-associated systemic changes at early and precancerous stages, representing a critical clinical gap. This dissertation addresses the central hypothesis that PDAC and its pathological subtypes induce measurable, disease-associated electrophysiological changes in circulating PBMCs that can serve as correlative liquid-biopsy biomarkers. To test this hypothesis, this work asks: can dielectrophoresis (DEP), impedance and zeta potential analysis with AI-assisted classification distinguish benign pancreatic conditions (non-malignant control), precancerous lesions (primarily IPMNs), …

Valuing Future Lives, Daniel J. Hemel, Jonathan S. Masur

Coase-Sandor Institute for Law & Economics Research Paper Series

Federal regulation often involves a tradeoff between monetary costs in the present and life-saving benefits in the future. A central question in regulatory cost-benefit analysis is how to assign a present dollar value to future lives so that future lives and present dollars can be compared. For regulations that are projected to prevent deaths years or decades down the road, agencies make two key analytical moves. First, they adjust the value of a statistical life upward to reflect the fact that society’s willingness to pay to save lives will rise as people become wealthier in the future. Second, they discount …

General Relativity: Existence, James Glimm

Department of Applied Mathematics & Statistics Faculty Publications

A mathematically rigorous renormalized perturbative expansion, truncated to all finite orders, establishes the existence of quantum general relativity theories with Fermion matter fields. The expansion is initialized with the selection of a vacuum state.

Distinct infrared (IR) and ultraviolet (UV) vacuum states are considered. The IR vacuum state defines a cosmology model. The UV vacuum state defines a black hole model.

The vacuum state is initialized with a $\mathfrak{o}^3$ gauge Lie algebra defining a quark-gluon plasma. With this choice, string theory is avoided.

Finite order renormalized perturbation theory, defined using Bosons to avoid Fermion sign cancellation, is convergent to all …

The Yang-Mills Field: The Fermion Sign Problem, James Glimm

Department of Applied Mathematics & Statistics Faculty Publications

A mathematical resolution of the Fermion sign problem is accomplished based on the theory of homology groups and thimbles. The original contribution of this paper is the mathematicly rigorous convergence of residual states. The residual states remain after use of a rigorous Picard-Lefschetz saddle point optimization.

The proofs depend on an assumed principle of a maximum rate of entropy production.

Two Yang-Mills gauge field theories are constructed, one based on short distance asymptotics and the other based on long distance asymptotics.

High Stakes And Random Rewards: A Critical Look At Loot Boxes And Illegal Gambling, Brian T. Wersan

Touro Law Review

Since their inception in the mid-2000s, loot boxes have been legal and virtually unregulated in the United States. Ever-growing mountains of evidence demonstrate the harms of loot boxes, but their structure has not yet been found to be in violation of any current U.S. gambling law, leading to a complete lack of recovery for victims. Certainly, if people experience harm, a legal avenue providing justice must exist. While other avenues are referenced, this Note ultimately argues that loot boxes can be interpreted by courts to satisfy the elements of, and thus, violate multiple state gambling laws, revealing a path to …

Inside Out: Improving Large Model Safety, Wei Zhao

Dissertations and Theses Collection (Open Access)

While Large Language Models (LLMs) and Multimodal Large Language Models (MLLMs) are at the frontier of current advancements in artificial intelligence, demonstrating remarkable capabilities across diverse applications, there are growing concerns about their reliability and security. LLMs remain vulnerable to adversarial attacks through carefully crafted prompts that circumvent safety mechanisms, while MLLMs face additional security challenges stemming from their multimodal nature. Despite considerable efforts in reinforcement learning from human feedback (RLHF) and supervised fine-tuning, existing safeguards have proven inadequate in addressing these critical vulnerabilities. This inadequacy stems from the fact that these models are inherently blackboxes that do not provide …

Western Massasauga (Sistrurus Tergeminus): A Species Conservation Assessment For The Nebraska Natural Legacy Project, Colleen Rothe-Groleau, Melissa J. Panella

Nebraska Game and Parks Commission: Publications

The Nebraska Natural Legacy Project recognizes the western massasauga (Sistrurus tergeminus) as a Tier I at-risk species. Provided are some general management recommendations regarding western massasaugas. Conservation practitioners will need to use professional judgment to make specific management decisions based on objectives, location, and a multitude of variables. This resource was designed to share available knowledge of this at-risk species that will aid in the decision-making process or in identifying research needs to benefit the species.

Criteria for selection as Tier I: State listed, G3

Estimated Population in NE: 1,000–2,500

Estimate based on: Field surveys

Trends since 2005 …

How Do Individual And Environmental Covariates Impact The Immune Response Of Deer Mice In Western Montana?, Rachel A. Throckmorton, Angela Luis

Undergraduate Theses, Professional Papers, and Capstone Artifacts

Sin Nombre Virus (SNV) is an exceptional model system for studying wildlife disease because of how simple it is to capture, take samples, and obtain disease status from the primary host. Immune response is an important factor to consider when testing for SNV because it can affect susceptibility of the host as well as transmission of the virus. We examined individual and environmental conditions that may predict immune response and therefore possibly SNV transmission in wild populations. We investigated whether SNV infection status, reproductive status, sex, and season correlate with immune response through examining total white blood cell (WBC) counts …

2026 Document For Faculty And Staff Scholarship Spring Soirée, Kara Schleck, Diana Symons

Celebrating Scholarship and Creativity Day (2018-)

No abstract provided.

Multilayer Adaptive And Cooperative Control Of Pipeline Systems: From Local Loop Adaptation To Distributed Game-Theoretic Coordination, David Brattley

Dissertations, Master's Theses and Master's Reports

This dissertation presents a unified adaptive and coordinated control architecture for multi-station centrifugal pump pipeline systems operating under dynamic hydraulic conditions. Local controller adaptability is achieved using a variable-forgetting-factor Recursive Least Squares (RLS) algorithm, which continuously estimates process parameters to adjust controller gains in real time. To prevent excessive effort and controller-induced instability, a reinforcement-learning supervisory layer based on Q-learning is implemented to determine optimal adaptation-activation policies.

For pipeline systems with multiple pump stations, a game-theoretic coordination layer is introduced to balance discharge-pressure contributions, minimize pressure oscillations, and improve energy distribution across geographically distributed assets. Cooperative and non-cooperative strategies are …

Microgravity-Induced Alterations In Left Atrial Hemodynamics And Thrombogenic Risk: Insights From Healthy And Atrial Fibrillation Models, Grace M. Hoeppner

Dissertations, Master's Theses and Master's Reports

Background: Microgravity exposure alters cardiovascular loading, yet its impact on left atrial flow dynamics and thrombotic risk remains poorly understood. This study investigates how spaceflight-relevant microgravity-induced changes in cardiac outflow affect left atrial hemodynamics in healthy individuals and patients with atrial fibrillation.

Methods: Patient-specific left atrial models were generated for three healthy individuals and three AF patients. Computational fluid dynamics (CFD) simulations were performed using each patient’s baseline mitral outflow waveform and two modified waveforms representing short- and long-duration post-flight cardiac loading changes derived from echocardiographic observations. Hemodynamic metrics included left atrial velocity, time averaged wall shear stress, oscillatory shear …

On The Vibrational Dynamics Of Wind Turbine Blades: The Oscillatory Response To Gust Pulses, And The Physical Mechanisms Behind Them, North A. Yates

Dissertations, Master's Theses and Master's Reports

An easily noticed trend in the utility-scale wind turbine industry is that the size of the machines has continued to increase over time. While this may have benefits in terms of increasing the power generation for a single turbine, a major drawback is the rate with which the weight of the turbine blades grow. To ensure these larger machines can be utilized, efforts are being put forth to create lighter blades. This may fix the weight issue, but brings on a new one; these lighter blades can also be more flexible than previously studied ones. It is, therefore, vitally important …